Terminology annotation in XLIFF

Hi Marcis,

from the Tilde ITS 2.0 annotation showcase I have generated the attached 
XLIFF document. It contains "Terminology" annotations. A few remarks.

1) The XLIFF mapping
http://www.w3.org/International/its/wiki/XLIFF_Mapping
says that there needs to be an "annotatorsRef" attribute if 
termConfidence is used, but I don't see it in the XLIFF file.

2) The XLIFF mapping uses an extension namespace, e.g.
<mrk mtype="term" itsx:termInfoRef="#ge4" itsx:termConfidence="0.5">
but the Tilde implementation generates "mrk" elements with the ITS 
namespace, e.g.
<mrk its:termInfoRef="#tilde-tbx-taas-9-etb-9">
<mrk mtype="term" its:termConfidence="0.21">

Maybe there is a reason for that, but I may have missed it.

Thanks a lot in advance,

Felix